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Heterotic segregants
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Generally diverse individuals are likely to produce more heterotic effects during the crossing programme and desirable segregants are also produced. Genetic diversity depicts the heritable variation within and between populations of a species.
8p
trinhthamhodang11
27-04-2021
11
2
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At the same time, the breeding lines from the advanced generations are also used as parental lines for developing commercially exploitable heterotic hybrids. But, most often the source of early generations i.e., F3, F4, F5 and F6 segregating populations offer wider opportunities for achieving high success, because of wider genetic base.
10p
trinhthamhodang1218
26-02-2021
12
2
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In this experiment 55 linseed genotypes were evaluated to determine genetic diversity by Mahalanobis D2 statistics during rabi 2018-19 at the Department of Plant breeding and Genetics, Orissa University of Agriculture and Technology, Odisha India. It revealed that 55 genotypes were grouped into eleven clusters. Result envisaged that genotypes grouped within a particular cluster are more or less genetically similar.
6p
caygaocaolon6
30-07-2020
4
1
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Twenty mungbean hybrids were derived five lines, four testers, through linex tester mating design were evaluated to study the magnitude of relative heterosis, heterobeltiosis and standard heterosis for yield and nutritional traits. The magnitude of relative heterosis, heterobeltiosis and standard heterosis observed for seed yield per plant were 57.45, 53.67, and 51.04 respectively. Heterosis for seed yield per plant is manifested through heterotic response for most of the yield contributing traits in additive fashion.
12p
gaocaolon5
14-06-2020
12
1
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Genetic variability and diversity play a major role in framing successful breeding programme. It is evident that genetically diverse parents are likely to produce high heterotic effects and yield desirable transgressive segregants. Keeping this in view, the present study was conducted to evaluate nature and extent of genetic variability and diversity in Indian mustard [Brassica juncea (L.) Czern. & Coss.].
13p
trinhthamhodang5
16-05-2020
13
2
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Hundred foxtail millet genetic resources were studied to assess the magnitude of genetic diversity for 18 metric traits using Mahalanobis D2 Statistic (Tocher’s method). The results of the study showed that the genotypes were grouped into 11 distinct non-overlapping clusters suggesting availability of substantial genetic diversity.
10p
cothumenhmong3
22-02-2020
19
0
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The 60 elite chickpea genotypes were morphologically characterized and classified as per the guidelines for the conduct of DUS test of chickpea (Cicerarietinum L.)by the PPV&FRA, 2007, GOI. Among 13 DUS traits observed; seven traits were found tri-morphic, four traits di-morphic and two traitspolymorphic among 60 chickpea genotypes indicated the existence of remarkable amount of genetic variability that have great potential to assign distinctive morphological profiles which could be used for varietal identification and characterization.
11p
nguaconbaynhay3
07-02-2020
16
1
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Cluster and association analysis were studied for yield maximization and yield attributing traits in pigeonpea [Cajanus cajan (L.) Millsp]. There was significant variation observed for all the characters under study. Association studies revealed that seed yield per plant was positively associated with number of pods per plant, number of pod clusters per plant, number of primary branches per plant and pod length. Cluster analysis result showed existence of considerable diversity in pigeonpea germplasm accessions. The maximum inter cluster distance was observed in between cluster I and VI.
9p
nguaconbaynhay1
04-12-2019
13
0
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